Adjustable stop mechanism.



W. AHLEN.

ADJUSTABLE STOP MECHANISM APPLIUATION FILED 1111. a1, 1908.

Patented Aug. 1, 1911.

2 SHEETS-SHEET 1.

INVEN'TOR WITNESSES W. AHLEN. ADJUSTABLE STOP MECHANISM, APPLICATIONFILED JAN. a1, 1908. 999, 1 94. Patented Aug. 1, 1911.

2 SHEETSSHEET 2.

UNITED sra'rns apruwr FFICE.

WILLIAM AHLEN, 0F DUQUESNE, PENNSYLVANIA.

ADQTUSTABLE STOP MECHANISM.

Specification of Letters latcnt.

PatentedAug. 1, 1911.

Application filed January 31, 1908. Serial No. 4135551 To all whom itmay concern:

' Be it known that I, WILLlAM AnLnN, of Duquesne, Allegheny county,Pennsylvania, have invented a new and useful Adjustable 'Stop Mechanism,of which the following is a clear, and exact description, referencebeing bad to the accompanying drawings,

forming part of this specification, in which beam forming the runway ortrackupon Y which the stop is mounted so as to vary the distance betweenthe sawwor shear and the stop so as to regulate the length to which thematerials on the feed table are out.

Another object of the invention is to provide improved means forsecuring the apparatus' in its adjusted position on its track and meanswhereby the stop is moved out of the path of the pusher by which thematerials are moved transversely from the feed table to a storage orcooling bed or other point of delivery and is moved out of the path ofmaterials being fed forwardly on the rollers of the feed table. I

A still further object of the invention is to provide improved means forcushioning the impact of the materials when fed forwardly into contactwith the stop by the feed table.

In the drawings, 2 represents the rollers of a roller feed table, onwhich materials are delivered from the rolling mill or other point ofsupply tothe saw or shear into position to be cut, as shown, this tablebeing located above and to one side of a cooling bed or storage bed 3. Apusher 4 is provided by means of which the bars or other materials onthe feed rollers 2 are transferred laterally sidewise'from' the rollersof the feed table to the skids forming the cool ing bed or storage bed3. The pusher 4 1s connected by endless ropes or other flexibleconnections 45 which extend around winding and rope tightening drums(not shown) located (on opposite sides of the bed 5, which constructionbeing old and well known and not forming part of this invention'need notbe further described.

A longitudinal beam 5 extends parallel with and above the feed table 2,being secured upon thesupports-or standards 6, and i on the top portionsof the standards6 a platform 7 is provided on which the operator isstationed to manipulate the movable stop which is mounted on the beam 5.The stop consists in a frame 8 having anti-friction rollers 9, which aremounted upon and run on the track formed by the top flange 10 of thebeam 5, the lower end of the frame 8 extending under and engaging withthe lower flange 11 of the beam 5. The opposite edges of the flange 11are beveled, and the engaging faces of the frame 8 have similarlybeveled faces, which contact'with the beveled edges of the fiange.1l,.asshown at 11.

Pivotally secured on the'lower'en d of the frame 8, is a movable armorvstop 12, this stop being secured to the frame by the'pin 13. Alsomounted on the pin 13 is a helical spring 14,.Vl1i0l1 is employed toabsorb the shock caused by the impact against the stop of the metalbeing brought into contact with it by the feed table rollers Q. Mountedon the pinrl3, is a bushing 15 having a collar 16 formed integral on oneend and having a collar 17' on its opposite end which is secured so asto be adjustable on the bushing or sleeve 15 by means of the screwthreads 18. The spring 14 is mounted on the bushing 15, the ends of thisspring engaging with the collar 16 and the end of the stop 12 By the useof this construction, the tension upon the spring may be adjustedwithout binding between the oppositely facing bearings 19 for the pin 13on the lower portion of the frame 8, and this construction allows thestop 12 to freely swing sidewise irrespective of the tension on thespring when this stop is moved by thev operator through the hand lever20, which is connected to the stop 12 by the'chain or other flexibleconnection 21. 1

illounte'd on the top portion of the frame 8 is a shaft 22, whichextends downwardly into the screw-threaded nut 23, and is pro vided onits upper end with the hand wheel 24:. The lower end of the shaft22'engages with the outer-end of a lever arm 25, the fulcrum of whichbears upon the shoe 26 on the frame of the stop, which shoe slides moonthe top flange 10 of the beam The opposite end of the lever 25 engageswith the pin 27 on'the frame 8, so that as the hand wheel 24 is turnedby the operator the frame 8 is raised and is securely locked in itsadjusted position on the beam 5, the beveled edges 11 of the lowerflange 11 wedging these parts together so as to securely hold the stopand frame in the desired position.

The top flange 10 of the beam 5 on the edge nearestthe platform ismarked so as to divide its length into feet so as to indicate thedistance in feet from a saw or other cutting tool to the face of thestop 12. On the side of the movable frame 8 is a graduated plate 8 whichis divided into inches and fractional parts of an inch. By adjusting theframe 8 the desired mark on the plate 8 is moved into place inline withthe desired mark on the beam 5 and the operator is enabled to cut thematerials to any required fractional part of an inch in length.

In the operation of my improved apparatus, the frame 8 with the stop 12is moved along the beam 5 by the operatoruntil the stop is in thedesired position. The hand wheel 24 is then operated to move the lever25 and cause the frame 8 to be tightly gripped on the opposite flangesl0 and 11 of the beam 5. The material is then fed into contact with thestop 12 by the feed roller table. Thennaterial is then sawed orotherwise cut to the desired length and the pusher i is then actuated tomove the cut material transversely from the roller table to the coolingbed 3. The stop 12 may be lifted clear of the cut materials by moving itout of the path of the pusher 4: through the hand lever 20 by theoperator or this stop may be moved by contact with the pusher 4, as isdesired,

Where the roller delivery table is very long and the differences in thelengths to which the materials are out are very great, a series of stopsmay be provided at suitable intervals in the length of thedelivery tableinstead of the one stop shown, and in such case the successive swingingstops can be raised out of the path of the material being fed forwardlyon the table until it is in con-- tact with the desired stop.

he advantages of my invention are many, and will be apparent to thoseskilled in the art. I am the first to bevel the edges of the lowerflange of the beam carrying the stop and to provide correspondinglybeveled edges on the frame of the stop which by the action of thetightening mechanism oper ated by the hand. wheel 2?: wedges the frameof the stop into its adjusted. position. I am also the first to show astop having a spring arranged to resist the impact of the metal broughtinto contact with it, in which the tension upon the spring can beadjusted seams without increasing the force necessary to move theswinging stop, and such construction I intend to claim broadly.

I clain1 1. Stop mechanism for metal bars and the like comprising aroller delivery table having a pusher arranged to move across the widthof the table, a carriage track directly over the feed rollers andextending lengthwise parallel with the length of said roller tablehaving a carriage movably mounted thereon and a swinging stop dependingfrom said carriage and arranged to swin out of the path of bars beingtransferre longitudinally on said delivery table. 9,

2. Stop mechanism for metal bars and the like comprising a rollerdelivery table hav ing a pusher arranged to move across the width of thetable, a carriage track directly over the feed rollers and extendinglengthwise parallel with the length of said roller table having acarriage removably mounted thereon and a swinging stop depending fromsaid carriage and arranged to swing out of the path of bars beingtransferred lengthwise by said roller table and means on the carriagefor swinging said stop.

3. Stop mechanism for metal bars andthe like comprising a rollerdelivery table, a swinging stop member, a carriage track extendinglengthwise above the roller table, a carriage for said stop membermovably mounted on said track, said carriage and track having co-actingwedglng faces and means fogllftlng' said carriage on the track to bringsaid wedging faces into lockmg po- \N w, sitlon.

4. Stop mechanism for metal bars and the like comprising a rollerdelivery table, a

stop member supported so as to swing transversely of the width of saidtable out of operati e position, a cushioning device for the stop andmeans for varying the resistance of said cushioning device withoutinterfering with the free swinging movement of the stop.

5. Stop mechanism for metal barsand the like having a swinging stopmember, an ad justable carriage from which the stop de- Jends a track onwhichthe carria e is Ion-Y gitudinally adjustable, said track andcarriages having engaging wedging' faces adapted to secure the carriageon said track and means on the carriage for lifting said carriage tobring the wedging faces into locking position,

6. Stop mechanism for metalbars and the like having stop membersupported to swing out of operative position, a sleeve on which the stopmember is mounted, a spring also mounted on the sleeve, means securingthe SJKlD and sto member on the sleeve l C: p 7

and arranged to vary the resistance of the spring, and a shaft on whichthe sleeve is loosely mounted.

7. Stop mechanism for metal bars and the i to lift the carriage on. thebeam inbringing 10 like having a depending stop member theresaid wedgingfaces into locking engagement. on, an adjustable carriage on which thestop In testnnony whereof, I have hereunto set member is mounted toswing'into and out of my hand. operative position, a beam on which saidNIL,r 1AM {HLEN carriage is movably mounted, opposing wedging faces onthe carriage and flanges of Witnesses:

said beam arranged to co-act in looking the I GEORGE L. NEFF,

carriage on said beam and means arranged T. E. MCDOWELL.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents.

Washington, D. C.

